Fatal error: Uncaught Error: Class 'Cornerstone_Plugin_Component' not found in /home/frassati/public_html/wp-content/plugins/cornerstone/includes/_classes/classic/class-legacy-renderer.php:5 Stack trace: #0 {main} thrown in /home/frassati/public_html/wp-content/plugins/cornerstone/includes/_classes/classic/class-legacy-renderer.php on line 5